Responses
You seem to forget that Curtis isn't a rootless beast like the scorpion king. Rootless beasts are savages and aggressive, with no sympathy. They dont care about winning a female's heart but take what they want by force ruthlessly even if it means killing the female after they get their offspring.
Curtis on the other hand cherishes his female and her feelings. Even when he wanted things to go his way, he realized it would make Bai sad and ended up respecting her wishes.
You know, the way this scorpion took her and is the same way the snake took her.